669332159 has 8 divisors (see below), whose sum is σ = 674409120. Its totient is φ = 664268256.

The previous prime is 669332101. The next prime is 669332189. The reversal of 669332159 is 951233966.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-669332159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669332189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115577 + ... + 121229.

It is an arithmetic number, because the mean of its divisors is an integer number (84301140).

Almost surely, 2^669332159 is an apocalyptic number.

669332159 is a deficient number, since it is larger than the sum of its proper divisors (5076961).

669332159 is a wasteful number, since it uses less digits than its factorization.

669332159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6529.

The product of its digits is 262440, while the sum is 44.

The square root of 669332159 is about 25871.4545203782. The cubic root of 669332159 is about 874.7431775250.

The spelling of 669332159 in words is "six hundred sixty-nine million, three hundred thirty-two thousand, one hundred fifty-nine".